Significant Customers (Tables)

3 Months Ended

Mar. 31, 2013

Risks and Uncertainties [Abstract]

Revenues attributable to sales to major customers

For the three months ended March 31, 2013 and 2012, the percentage of the Company’s revenues attributable to sales made to these customers was as follows:

	Three Months Ended
	March 31,
	2013	2012
Telvent	22.0%	38.2%
Avnet	12.7%	7.5%
Ubitronix	12.7%	1.1%
Duke	9.3%	20.1%
Total	56.7%	66.9%